Display screen, or portion thereof, with a graphical user interface



FIG. 1 is the first image in a sequence for a display screen, or portionthereof, with a graphical user interface showing a first embodiment ofthe new design;

FIG. 2 is a second image thereof;

FIG. 3 is the first image in a sequence for a display screen, or portionthereof, with a graphical user interface showing a second embodiment ofthe new design;

FIG. 4 is a second image thereof;

FIG. 5 is the first image in a sequence for a display screen, or portionthereof, with a graphical user interface showing a third embodiment ofthe new design; and,

FIG. 6 is a second image thereof.

The appearance of the transitional graphical user interface sequentiallytransitions between the images shown in FIGS. 1-2; FIGS. 3-4; and FIGS.5-6. The process or period in which one image transitions to anotherforms no part of the claimed design. The broken lines in the drawingsillustrate portions of the graphical user interface that form no part ofthe claimed design.

CLAIM I claim the ornamental design for a display screen, or portionthereof, with a graphical user interface, as shown and described.